CN113775230A - Energy dissipation extension arm with additional amplifying device - Google Patents
Energy dissipation extension arm with additional amplifying device Download PDFInfo
- Publication number
- CN113775230A CN113775230A CN202111031105.XA CN202111031105A CN113775230A CN 113775230 A CN113775230 A CN 113775230A CN 202111031105 A CN202111031105 A CN 202111031105A CN 113775230 A CN113775230 A CN 113775230A
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- China
- Prior art keywords
- boom
- horizontal rod
- amplifying device
- truss
- rod
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
- E04H9/0237—Structural braces with damping devices
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/98—Protection against other undesired influences or dangers against vibrations or shocks; against mechanical destruction, e.g. by air-raids
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
- E04H9/0235—Anti-seismic devices with hydraulic or pneumatic damping
Abstract
The invention provides an energy dissipation boom with an additional amplifying device, wherein a boom truss comprises an upper chord horizontal rod, a lower chord horizontal rod, an inclined web member and a web member, a positioning lug plate is fixed on the lower chord horizontal rod, an unequal arm lever is hinged on the positioning lug plate through a supporting pin shaft, the bottom of the unequal arm lever is connected with a viscous fluid damper, the viscous fluid damper is fixed on the lower chord horizontal rod through a bracket, the top of the unequal arm lever is connected with the bottom of a vertical driving rod through a pin shaft, and the top of the vertical driving rod is fixed on the upper chord horizontal rod. This application is enlarged principle and traditional attenuator through the arm lever that varies and is combined, has effectively improved the work efficiency of attenuator for under wind load and earthquake power effect, vary arm lever amplification effect through machinery and effectively enlarge the attenuator, the energy consumption efficiency of full play attenuator improves the additional damping ratio of structure, reduces the external input and destroys the effect to the major structure, improves structural comfort degree and antidetonation security performance.
Description
Technical Field
The invention relates to the technical field of energy dissipation of buildings, in particular to an energy dissipation cantilever with an additional amplifying device, and belongs to the technical field of earthquake resistance, energy dissipation and shock absorption of engineering structures.
Background
Earthquake action and wind load action are two most prominent factors in super high-rise building design. The main points and difficulties of high-rise design are that the structural deformation and the wind resistance comfort degree do not exceed the limits of the specification under the action of earthquake and wind power. The super high-rise structure mostly adopts a peripheral frame column and a middle core tube structure system, an outrigger truss is arranged between the peripheral frame column and an inner core tube at a certain floor height, when the structure is acted by horizontal load, the stress and deformation conditions of the core tube and the periphery are adjusted through the coordination action of the outrigger truss, one side of the peripheral frame column is pressed, and the other side is pulled, so that the anti-overturning moment is formed, the earthquake and wind action is resisted, the structural deformation is reduced, and the action of the outrigger truss is very obvious. The damper is added in the outrigger truss reinforcing system, so that wind or earthquake input energy can be intensively dissipated through the damper, the reaction of the main body structure under the action of wind power or earthquake is reduced, and the aim of shock absorption is fulfilled. The damper needs a certain deformation amount or deformation speed when fully playing the energy consumption role, and for some structures or structures with small self lateral deformation under the action of medium and small earthquakes, the damper is difficult to fully play the working performance, the application is greatly restricted, and the existing outrigger truss needs to be technically improved in order to solve the problems.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
Disclosure of Invention
The invention provides an energy dissipation boom with an additional amplifying device, which is used for solving the problems in the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides an energy dissipation boom with an additional amplifying device, which comprises: the core barrel, the outer frame column and the outrigger truss; the core barrel and the outer frame column are connected through the outrigger truss; the boom truss comprises an upper boom horizontal rod, a lower boom horizontal rod, an inclined web member and web members, wherein a positioning lug plate is fixed on the lower boom horizontal rod, an unequal boom lever is hinged to the positioning lug plate through a supporting pin shaft, two sides of the bottom of the unequal boom lever are respectively connected with a viscous fluid damper through a horizontal connecting rod, the viscous fluid damper is fixed on the lower boom horizontal rod through a bracket, the top of the unequal boom lever is connected with the bottom of a vertical driving rod through a pin shaft, and the top of the vertical driving rod is fixed on the upper boom horizontal rod.
Preferably, the outrigger truss is connected with the core tube through a steel skeleton column or an embedded part embedded in the core tube.
Preferably, the diagonal web members may be circular steel tubes, square steel tubes or H-shaped steel.
Preferably, the viscous fluid damper is a horizontally disposed velocity type damper.
Preferably, the lower chord horizontal rod is fixed with two positioning ear plates which are symmetrically arranged along the central line of the outrigger truss.
Preferably, two sides of the bottom of the unequal arm lever are hinged with the horizontal connecting rod.
By adopting the technical scheme, the invention has the following beneficial effects:
under the action of wind power or horizontal earthquake, the unequal arm lever amplifies the relative deformation between the structural layers, and the damper quickly responds to the energy consumption effect to dissipate the energy input from the outside. The scheme has strong practicability, ensures the integrity of the boom truss, solves the key technical problem of energy dissipation boom with an amplifying device at present, can play the reinforcing role of reducing the lateral movement of the structure of the common boom truss, reduces the overturning bending moment of a core barrel, avoids the situation that the damper is difficult to fully exert energy consumption capacity when the displacement, the speed and the like of the damper are small under the action of medium and small earthquakes, and improves the working efficiency and the energy consumption of the damper.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic view of a vertical plane of a damping and energy-dissipating boom truss with an amplification technique in the vertical arrangement of a building;
FIG. 2 is a schematic plan view of the energy-absorbing outrigger truss with amplification technique between the core tube and the outer frame column;
FIG. 3 is a schematic structural diagram of an elevation view of a damping and energy-dissipating boom truss with an amplification technique according to the present invention;
FIG. 4 is an exploded view of the additional magnification device of the present invention;
FIG. 5 is a schematic view of the connection structure of the unequal-arm lever steel ear plate of the present invention;
FIG. 6 is a schematic view of the deformation of the energy dissipating boom truss of the present invention;
FIG. 7 is a schematic view of a variation of the components of the supplemental magnification device of the present invention;
figure 8 is a schematic diagram of the additional amplification device of the present invention for amplification of the effect of the unequal arm leverage.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
Referring to fig. 1 to 8, this embodiment provides an energy dissipating boom with an additional amplifying device, including: a core barrel 10, an outer frame column 20 and a outrigger truss 30; the core barrel 10 and the outer frame column 20 are connected by the outrigger truss 30; the boom truss 30 comprises an upper chord horizontal rod 31, a lower chord horizontal rod 32, an inclined web member 33 and a web member 34, wherein a positioning lug plate 50 is fixed on the lower chord horizontal rod 32, an unequal arm lever 38 is hinged on the positioning lug plate 50 through a supporting pin shaft 412, two sides of the bottom of the unequal arm lever 38 are respectively connected with a viscous fluid damper (a viscous fluid damper 351 and a viscous fluid damper 352) through a horizontal connecting rod (a horizontal connecting rod 361 and a horizontal connecting rod 362), the viscous fluid damper is fixed on the lower chord horizontal rod 32 through a bracket (a bracket 391 and a bracket 392), the top of the unequal arm lever 38 is connected with the bottom of a vertical driving rod 37 through a pin shaft 411, and the top of the vertical driving rod 37 is fixed on the upper chord horizontal rod 31.
According to the invention, the viscous fluid damper is arranged in the truss, under the action of wind power and earthquake force and under the action of wind load and earthquake force, the viscous fluid damper is effectively amplified through the amplification effect of the unequal arm lever 38, the energy consumption efficiency of the viscous fluid damper is fully exerted, the additional damping ratio of the structure is improved, and the damage effect of external input on the main structure is reduced.
According to the invention, viscous fluid dampers are arranged in the truss, the floors generate interlayer relative displacement under the action of wind power and earthquake force, the deformation and the deformation speed are amplified through the unequal arm lever action to excite the dampers to act, and the external input energy is dissipated.
In the invention, the structure is acted by horizontal force to generate lateral movement and interlayer displacement, the vertical driving rod 37 acts the floor displacement difference on the unequal arm lever 38, the deformation amount and the deformation speed are amplified through the mechanical action of the unequal arm lever, and the damper is excited to work quickly.
The invention ensures the integrity of the truss, and the integral strengthening function of the cantilever cannot be influenced even if the amplification device or the damper fails.
The invention can change the amplification efficiency of the lever by adjusting the lengths of the power arm L1 and the resistance arm L2 of the unequal arm lever, so that the viscous fluid damper generates reasonable energy consumption effect.
Preferably, the outrigger truss 30 is connected with the core tube 10 through a steel skeleton 11 or embedded member embedded in the core tube.
Preferably, the energy-consuming truss diagonal web members 33 in the invention can be round steel pipes, square steel pipes, or H-shaped steel with various suitable cross sections.
Preferably, the viscous fluid damper is a horizontally arranged speed type damper, and the material and the manufacturing process meet the relevant requirements of the building energy dissipation and shock absorption technical regulation; the horizontal dislocation of the interlayer displacement of the reinforcing layer drives the damper to work through the amplification effect of the unequal arm lever, so that the viscous liquid flows through the damping channel to cause a damping effect, and the purpose of dissipating energy is achieved.
Preferably, two positioning ear plates 50 are fixed on the lower chord horizontal rod 32, and the two positioning ear plates are symmetrically arranged along the center line of the outrigger truss 30.
Preferably, the two sides of the bottom of the unequal arm lever 38 are hinged with the horizontal connecting rod.
In the invention, the pin shaft 411, the supporting pin shaft 412 and the like are uniformly arranged by high-pressure-resistant, corrosion-resistant and low-resistance high-performance pin shafts.
The viscous fluid damper does not play a role in a static state, does not contribute to rigidity, and viscous liquid of the viscous damper passes through the damping channel under the action of pressure difference under the action of horizontal loads such as wind load, earthquake load and the like, so that damping force is generated. The viscous fluid damper 351 and the viscous fluid damper 352 are connected in parallel by a horizontal connecting rod 361 and a horizontal connecting rod 362, and are fixed to the lower-chord horizontal rod 32. The specification and performance parameters of the viscous fluid damper can be selected according to the actual engineering so as to ensure the energy consumption effect and the vertical force transmission path.
In the invention, an unequal arm lever 38 is supported by a positioning lug plate 50 through a bearing, one end of the unequal arm lever is connected with a vertical driving rod 37, and the other end of the unequal arm lever is connected with a parallel damper horizontal connecting rod 361 and a horizontal connecting rod 362; under the action of wind power and earthquake force, the outrigger truss 30 plays a role in adjusting stress and deformation conditions of the core cylinder and the periphery, the structure generates lateral movement and interlayer displacement, the vertical driving rod 37 acts the floor displacement difference delta on the unequal arm lever 38, wherein delta 1 is delta, the deformation amount and the deformation speed are amplified through the mechanical action of the unequal arm lever, delta 2 is eta delta, an axial upward acting force is comprehensively generated on the damper 35, the damper is excited to rapidly work, and the damper 35 plays an energy consumption role. The amplification efficiency of the unequal arm lever pair damper depends on the length ratio of L1 to L2, and the amplification coefficient eta is delta 2/delta 1 and L2/L1.
The vertical driving rod 37 acts the displacement difference of the top surface of the floor relative to the bottom surface of the floor on the unequal arm lever 38 to generate a reverse effect, the damper is excited to work through mechanical amplification of the lever, a large amount of external input energy is consumed, and the damage effect of the external input on the main body structure is reduced.
In conclusion, the damper effectively improves the working efficiency of the damper through the unequal arm lever amplification principle and the viscous fluid damper, amplifies the deformation and the deformation speed through the mechanical principle under the action of a small external force to excite the damper, consumes a large amount of external input energy, reduces the damage effect of the external input on a main body structure, improves the structural comfort and the anti-seismic safety performance, and has important practical significance on the development of a super high-rise structure.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (6)
1. An energy dissipating boom with an additional amplifying device, comprising: the core barrel, the outer frame column and the outrigger truss; the core barrel and the outer frame column are connected through the outrigger truss; the boom truss comprises an upper boom horizontal rod, a lower boom horizontal rod, an inclined web member and web members, wherein a positioning lug plate is fixed on the lower boom horizontal rod, an unequal boom lever is hinged to the positioning lug plate through a supporting pin shaft, two sides of the bottom of the unequal boom lever are respectively connected with a viscous fluid damper through a horizontal connecting rod, the viscous fluid damper is fixed on the lower boom horizontal rod through a bracket, the top of the unequal boom lever is connected with the bottom of a vertical driving rod through a pin shaft, and the top of the vertical driving rod is fixed on the upper boom horizontal rod of the truss.
2. An energy dissipating boom of an add-on amplifying device as claimed in claim 1, wherein said boom truss and said core tube are connected by steel skeleton columns or embedded members embedded in the core tube.
3. An energy dissipating boom for an add-on amplifying device as claimed in claim 1, wherein said diagonal web members are made of round steel pipe, square steel pipe or H-section steel.
4. An energy dissipating boom of an add-on amplifying device according to claim 1, wherein said viscous fluid damper is a horizontally disposed velocity type damper.
5. An energy dissipating boom with an additional amplifying device as claimed in claim 1, wherein two said positioning ear plates are fixed on said lower chord horizontal rod, and are symmetrically arranged along the center line of the boom truss.
6. An energy dissipating boom for an add-on amplifying device as claimed in claim 1, wherein the unequal arm levers are hinged to the horizontal connecting rod on both sides of the bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111031105.XA CN113775230B (en) | 2021-09-03 | 2021-09-03 | Energy dissipation arm with additional amplifying device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111031105.XA CN113775230B (en) | 2021-09-03 | 2021-09-03 | Energy dissipation arm with additional amplifying device |
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| CN113775230A true CN113775230A (en) | 2021-12-10 |
| CN113775230B CN113775230B (en) | 2023-05-12 |
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| CN202111031105.XA Active CN113775230B (en) | 2021-09-03 | 2021-09-03 | Energy dissipation arm with additional amplifying device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115162511A (en) * | 2022-07-29 | 2022-10-11 | 东南大学 | High-efficient viscous energy dissipation prestressing force frame |
| CN117230907A (en) * | 2023-04-27 | 2023-12-15 | 道尔道科技股份有限公司 | Energy dissipater amplifying device based on lever principle |
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| KR20090027705A (en) * | 2008-11-12 | 2009-03-17 | 누리씨에스티 주식회사 | Buckling steel material damper and earthquake-proof stiffening device using thereof |
| CN103233526A (en) * | 2013-04-19 | 2013-08-07 | 清华大学 | Reinforcement layer with variable damping |
| CN103774767A (en) * | 2014-01-14 | 2014-05-07 | 同济大学 | Combined type high-rise structure energy dissipation and shock absorption enhancement layer |
| CN203742014U (en) * | 2014-02-21 | 2014-07-30 | 上海大学 | Oil damper with displacement amplification device |
| CN213087065U (en) * | 2020-09-04 | 2021-04-30 | 华东建筑设计研究院有限公司 | Connecting structure of cross-layer outrigger truss and viscous damper combined member |
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2021
- 2021-09-03 CN CN202111031105.XA patent/CN113775230B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090027705A (en) * | 2008-11-12 | 2009-03-17 | 누리씨에스티 주식회사 | Buckling steel material damper and earthquake-proof stiffening device using thereof |
| CN103233526A (en) * | 2013-04-19 | 2013-08-07 | 清华大学 | Reinforcement layer with variable damping |
| CN103774767A (en) * | 2014-01-14 | 2014-05-07 | 同济大学 | Combined type high-rise structure energy dissipation and shock absorption enhancement layer |
| CN203742014U (en) * | 2014-02-21 | 2014-07-30 | 上海大学 | Oil damper with displacement amplification device |
| CN213087065U (en) * | 2020-09-04 | 2021-04-30 | 华东建筑设计研究院有限公司 | Connecting structure of cross-layer outrigger truss and viscous damper combined member |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115162511A (en) * | 2022-07-29 | 2022-10-11 | 东南大学 | High-efficient viscous energy dissipation prestressing force frame |
| CN117230907A (en) * | 2023-04-27 | 2023-12-15 | 道尔道科技股份有限公司 | Energy dissipater amplifying device based on lever principle |
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| Publication number | Publication date |
|---|---|
| CN113775230B (en) | 2023-05-12 |
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